1. I have understand, that i have the oppertunity to set multiple scenes, but now i want to play them automatically scene after scene. Is there a way to do that (with no extra scripts)?2. I have found the group element on the json documentation, but i haven't understand for what groups are good for. Can someone explain it to me, please?

Groups are just here to organise your story. For example if you make a project to show a building, you can group your scene by floors.So if you sort your scene in groups floor by floor you can imagine a button to go from a group to another and it will go upstairs or downstairs ... (The building case is just an example of course).

We have no feature to change the scene automatically but it is on our long term roadmap. We call this "timeline" feature but we do not have started to develop it right now.

On what criteria you would automatically go to the next scene?- An amount of time?- At the end of a video scene it will go to the next video scene?- A director's cut track that rotates the camera then change the scene after each rotation complete?

I'm working on the 0.9.3 release today. Once released i'll work on a little code that will do the job for you.Basically you have to listen the scene loadComplete, then listen the onEnded event of the video media that will trigger the next scene action!In a next release you'll be able to do this trough the json configuration, it is on our roadmap.